Crystal Siren Cup


My ‘Crystal Siren Cup’ was made from coloured porcelain slip and crystalline glazes, both of which I create in my studio.

Crystalline glazes are a specialized glaze which must be measured out extremely accurately from a variety of raw materials. During a very long and hot glaze firing (1300 degrees Celsius), zinc silicate crystals form on the piece. The glaze is designed to be very runny as this assists in the growth of the glossy crystals. To avoid the pieces from bonding to the kiln shelf, a ‘riser’ and ‘drip dish’ are made to match each piece and after the firing process are removed. This leaves a jagged edge, so I grind and sand each piece down with 5-6 different tools, until a baby-bottom smooth base is achieved. It is a very lengthy process with a comparably high failure rate, but I hope you agree that the results are worth it! To ensure the longevity of the glossy crystals, I recommend hand washing crystalline work.


1 in stock


Approx 10cm


Approx 8.4cm


Approx 330ml